ECB34020G3 - 20 Amp Circuit Breaker

ECB34020G3 - 20 Amp Circuit Breaker

When you're working within a PowerLink™ Intelligent Panelboard system, having the right replacement breaker matters for keeping everything aligned with the original electrical design. The ECB34020G3 PowerLink™ Circuit Breaker is a 20-amp, 3-pole thermal-magnetic breaker built for compatible PowerLink™ panelboards commonly used in commercial, institutional, and industrial electrical systems. It is intended to maintain proper system fit and function while supporting consistent circuit protection within existing installations.

The bolt-on mounting configuration allows for a secure and stable installation within compatible panelboards, while the 3-pole design supports three-phase electrical distribution. It occupies three panel spaces, making it a direct fit into properly configured PowerLink™ panels. In supported systems, it can also be configured for manual or automatic reset functionality after a trip event. A 24 VDC motor operator option is available for installations requiring remote operation capability.

Key Features and Benefits

• Designed for compatible PowerLink™ Intelligent Panelboards
• 20A continuous current rating
• 3-pole configuration for three-phase electrical systems
• Thermal-magnetic trip technology for overload and short-circuit protection
• HACR rated for HVAC applications
• HID rated for lighting circuit compatibility
• Switching Duty rated for approved switching applications
• Bolt-on mounting design for secure installation
• Supports manual or automatic reset in compatible systems
• Optional 24 VDC motor operator for remote operation
• Occupies 3 panel spaces
• Built for service in commercial and industrial environments
• Helps maintain original panelboard layout and system compatibility

Technical Specifications

• Catalog Number: ECB34020G3
  
• Product Line: PowerLink™
  
• Circuit Breaker Type: ECB-G3
  
• Amperage Rating: 20A
  
• Number of Poles: 3 Pole
  
• Voltage Rating: 480Y/277 VAC
  
• Interrupt Rating:
  • 14 kA at 480Y/277 VAC
  • 42 kA at 240 VAC
• Trip Unit Technology: Thermal-Magnetic (LI)
  
• Circuit Breaker Application Ratings: HACR, HID, Switching Duty
  
• Mounting Type: Bolt-On
  
• Electrical Connection: Bolted Connection
  
• Wire Range:
  • Copper: AWG 12–8
  • Aluminum: AWG 10–8
• Panel Space Requirement: 3 Spaces
  
• Maximum Ambient Operating Temperature: 104°F (40°C)
  
• Optional Accessory: 24 VDC Motor Operator
  

Material Compliance and Certifications

The ECB34020G3 is manufactured to meet recognized electrical industry standards for safety and installation compliance in applicable environments.

• UL Listed
• CSA Certified
• TAA Compliant

These certifications help support compliance requirements across commercial buildings, institutional facilities, government projects, and industrial installations.

Where It Works Best

This breaker is commonly used in commercial facilities, industrial plants, schools, healthcare buildings, government properties, and infrastructure sites that rely on PowerLink™ Intelligent Panelboards. It fits well in applications such as HVAC control circuits, lighting systems, building automation equipment, and general three-phase power distribution. For maintenance teams and contractors, it provides a practical replacement option that keeps existing panelboard systems operating as designed, without requiring changes to the original configuration.